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Liu Y, Ruan X, Wang X, Yu WL, Zhang YJ. [Can laparoscopic surgery be the preferred strategy for gallbladder cancer?]. Zhonghua Wai Ke Za Zhi 2024; 62:273-277. [PMID: 38432667 DOI: 10.3760/cma.j.cn112139-20231227-00307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
Gallbladder cancer, notoriously known for its high malignancy, predominantly requires radical surgery as the treatment of choice. Although laparoscopic techniques have become increasingly prevalent in abdominal surgeries in recent years, the progress of laparoscopic techniques in gallbladder cancer is relatively slow. Due to the anatomical complexity, technical difficulty, and biological features of gallbladder cancer that is prone to metastasis and dissemination, traditional open surgery is still the main surgical approach. This study aims to reappraisal the current state of laparoscopic surgery for gallbladder cancer by appraising clinical practice and research evidence. Laparoscopic surgery for various stages of gallbladder cancer, including early, advanced, incidental, and unresectable gallbladder cancer were discussed. The promise and limitations of laparoscopic techniques are systematically explored.
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Affiliation(s)
- Y Liu
- Second Department of Biliary Surgery,the Third Affiliated Hospital of Naval Medical University,Shanghai 200438,China
| | - X Ruan
- Second Department of Biliary Surgery,the Third Affiliated Hospital of Naval Medical University,Shanghai 200438,China
| | - X Wang
- Second Department of Biliary Surgery,the Third Affiliated Hospital of Naval Medical University,Shanghai 200438,China
| | - W L Yu
- Second Department of Biliary Surgery,the Third Affiliated Hospital of Naval Medical University,Shanghai 200438,China
| | - Y J Zhang
- Second Department of Biliary Surgery,the Third Affiliated Hospital of Naval Medical University,Shanghai 200438,China
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Kung Y, Chien WC, Shen HH, Chen SL, Yu WL, Wang YC, Chen WS, Wu CH. Potential of thermoresponsive hydrogel as an alternative therapy for rat knee osteoarthritis. J Biomater Appl 2023; 38:707-718. [PMID: 37867223 DOI: 10.1177/08853282231208506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2023]
Abstract
Osteoarthritis is a degenerative condition that is highly prevalent and primarily affects the joints. The knee is the most commonly affected site, impacting the lives of over 300 million individuals worldwide. This study presents a potential solution to address the unmet need for a minimally invasive technique in the treatment of osteoarthritis: a biocompatible, injectable, and thermoresponsive hydrogel. In comparison to commercially available products such as lyophilized platelets, dextrose, and triamcinolone, the thermoresponsive hydrogel exhibits significantly superior performance in dynamic behaviors, including print area, stability, and step cycle, when tested on rats with knee osteoarthritis. However, it demonstrates similar treatment efficacy to these products in static behaviors, as observed through histopathological and immunohistochemical analysis. Therefore, the thermoresponsive hydrogel holds promise as an effective alternative therapy for osteoarthritis. Moreover, by blending the hydrogel with drugs, controlled and sustained release can be achieved, thereby facilitating the long-term management of osteoarthritis symptoms.
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Affiliation(s)
- Yi Kung
- Department of Biomechatronic Engineering, National Chiayi University, Chiayi, Taiwan
| | - Wei-Chun Chien
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Hsin-Hsin Shen
- Biomedical Technology and Device Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan
| | - Sen-Lu Chen
- Biomedical Technology and Device Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan
| | - Wei-Lin Yu
- Biomedical Technology and Device Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan
| | - Yu-Chi Wang
- Biomedical Technology and Device Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan
| | - Wen-Shiang Chen
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli, Taiwan
| | - Chueh-Hung Wu
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu, Taiwan
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3
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Hao MY, Sun LL, Sheng MW, Lyu YS, Lin YB, Yang YH, Zhi JH, Yu WL, Du HY. [Berberine alleviates programmed necrosis of metabolic-associated fatty liver disease via activating Nrf2 pathway in mice]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:224-229. [PMID: 35359076 DOI: 10.3760/cma.j.cn501113-20200910-00509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the effect of berberine on programmed necrosis of hepatocytes induced by metabolic-associated fatty liver disease (MAFLD) in mice and its related molecular mechanism. Methods: Twenty male C57BL/6N mice were randomly divided into four groups (n=5 in each group): control group (S), fatty liver group (H), berberine group(B), nuclear factor erythroid 2-related factor 2 inhibitor group (Nrf2), and all-trans-retinoic acid (ATRA) group (A). Serum alanine aminotransferase (ALT), aspartate aminotransferase (AST), lactate dehydrogenase (LDH), triglycerides (TG), total cholesterol (TC), tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β) concentrations were detected at the end of week 12 to calculate fatty liver index (liver mass/body mass ratio). Liver tissue was stained with HE, Masson and Oil Red O, and SAF score was used to evaluate the degree of liver injury. The expression levels of hepatic programmed necrosis-related proteins, namely receptor-interacting protein kinase 3 (RIPK3), phosphorylated mixed series protease-like domain (p-MLKL) and Nrf2 were detected by Western blot method. One-way ANOVA was used for intragroup comparisons and LSD-t tests were used for intergroup comparisons. Results: Compared with S group, H group serum ALT, AST, LDH, TG, TC, TNF-α, IL-1β levels and fatty liver index were significantly increased. The liver tissue was filled with vacuolar-like changes and inflammatory cell infiltration. Numerous red lipid droplets were observed with oil red O staining. Collagen fiber hyperplasia was evident with Masson staining. SAF scores (6.60 ± 0.55 and 0.80 ± 0.45) were significantly increased. The expressions of RIPK3 and p-MLKL were up-regulated. Nrf2 level was relatively increased, and the differences were statistically significant (P < 0.05). Compared with H group, berberine intervention group liver biochemical indexes, lipid levels, pro-inflammatory mediator expression, fatty liver index, and SAF score were significantly reduced, and the expression of RIPK3 and p-MLKL were down-regulated, while Nrf2 levels were further increased, and the differences were statistically significant (P<0.05). Compared with B group, treatment with Nrf2 inhibitor had antagonized the protective effect of berberine on fatty liver. Serum ALT, AST, LDH, TG, TC and TNF-α, IL-1β levels, fatty liver index, and SAF scores were significantly increased and the expressions of RIPK3 and p-MLKL were relatively increased, and the differences were statistically significant (P < 0.05). Conclusion: Berberine can significantly improve the metabolic-associated fatty liver disease injury in mice, and its mechanism is related to activation of Nrf2 and inhibition of programmed necrosis of hepatocytes.
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Affiliation(s)
- M Y Hao
- Tianjin First Central Hospital Clinic Institute, Tianjin Medical University, Tianjin 300192, China Hao Mingyue is working on the Department of Anesthesiology, Tianjin Eye Hospital, Tianjin 300020, China
| | - L L Sun
- Department of Anesthesiology, Central Hospital Affiliated to Shandong First Medical University, Jinan 250013, China
| | - M W Sheng
- Department of Anesthesiology, Tianjin First Center Hospital, School of Medical, Nankai University, Tianjin 300192, China
| | - Y S Lyu
- Tianjin First Central Hospital Clinic Institute, Tianjin Medical University, Tianjin 300192, China
| | - Y B Lin
- Department of General Surgery, General Hospital, Tianjin Medical University, Tianjin 300052, China
| | - Y H Yang
- Tianjin First Central Hospital Clinic Institute, Tianjin Medical University, Tianjin 300192, China
| | - J H Zhi
- Tianjin First Central Hospital Clinic Institute, Tianjin Medical University, Tianjin 300192, China
| | - W L Yu
- Department of Anesthesiology, Tianjin First Center Hospital, School of Medical, Nankai University, Tianjin 300192, China
| | - H Y Du
- Department of General Surgery, General Hospital, Tianjin Medical University, Tianjin 300052, China
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Zhao L, Kou ZX, Yu WL, Wang SL. [Investigation of abnormal menstruation of female workers in petrochemical industry]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 39:929-932. [PMID: 35164423 DOI: 10.3760/cma.j.cn121094-20200930-00551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To explore the influencing factors of abnormal menstruation of female workers in a petrochemical enterprise. Methods: A total of 5186 female employees in a petrochemical enterprise were selected as the research objects from July 2018 to December 2019. A questionnaire survey was conducted from four aspects: basic information, occupational status, psychological status at work, reproductive and reproductive health, and a multivariate logistic regression model was used for analysis. Results: Among 5132 female workers, 676 were postmenopausal and 1117 (25.1%) among 4456 non-postmenopausal women had abnormal menstruation in the last 6 months. Logistic regression analysis showed that age (<30、30~35 years) and length of service (≤20 years) were protective factors (OR=0.573, 0.590, 0.798, P<0.05) . Age (40~45、45~50 years old) , sleep duration (<6 h) , premature OR late menopause of maternal relatives, occupational exposure to dust, occupational exposure to chemicals, not wearing earplugs, leave due to health reasons in the last 6 months, reproductive tract infection OR symptoms in the last 6 months, spontaneous abortion, induced abortion, physical fatigue and mental fatigue were risk factors for menstrual abnormalities in female workers (OR=2.318, 5.544, 1.231, 1.199, 1.336, 1.403, 1.351, 1.538, 1.613, 1.584, 1.199, 1.601, 1.936, P<0.05) . Conclusion: The abnormal menstruation of female workers is affected by many factors in the occupational process, and specific measures should be taken to improve the reproductive health of female workers.
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Affiliation(s)
- L Zhao
- Medical College of Qinghai University, Xining 810001, China
| | - Z X Kou
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - W L Yu
- Kou ZhenxiaChinese Center for Disease Control and Prevention, Beijing 100050, China
| | - S L Wang
- Medical College of Qinghai University, Xining 810001, China
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Wang AYL, Shen HH, Lo WH, Yu WL, Liu YL, Lee CM, Loh CYY. A novel microsurgery clamp incorporating the cuff technique for ultrasmall vessel coaptation. J Plast Reconstr Aesthet Surg 2021; 74:3443-3476. [PMID: 34697004 DOI: 10.1016/j.bjps.2021.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 03/26/2021] [Accepted: 09/19/2021] [Indexed: 11/19/2022]
Affiliation(s)
- Aline Yen Ling Wang
- Center for Vascularized Composite Allotransplantation, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Hsin-Hsin Shen
- Biomedical Technology and Device Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan
| | - Wan-Hsun Lo
- Biomedical Technology and Device Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan
| | - Wei-Lin Yu
- Biomedical Technology and Device Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan
| | - Yung-Lung Liu
- Mechanical and Mechatronics Systems Research Labs, Industrial Technology Research Institute, Hsinchu, Taiwan
| | - Chin-Ming Lee
- Center for Vascularized Composite Allotransplantation, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Charles Yuen Yung Loh
- Plastic and Reconstructive Surgery, Addenbrooke's Hospital, Cambridge University Hospitals, Hills Road, Cambridge, CB2 0QQ, UK.
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Tian DZ, Teng DH, Yu Y, Li JJ, Jiang WT, Gao W, Cai JZ, Zhang YM, Ma N, Yu WL, Weng YQ, Li DH, Liu W, Zhou YH, Zheng H. [Initial exploration of transfusion-free liver transplantation]. Zhonghua Wai Ke Za Zhi 2021; 59:348-352. [PMID: 33915624 DOI: 10.3760/cma.j.cn112139-20200525-00410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the effect of transfusion-free techniques on the prognosis of liver transplant patients. Methods: The recipients of adult liver transplantation at Tianjin First Central Hospital from August to December 2019 were included in the clinical observation. Liver transplantation without allogeneic blood transfusion was performed through anesthesia management techniques such as acute hemodilution or phlebotomy without volume replacement,maintaining decreased baseline central venous pressure and cell saver. According to the actual results,the patients were divided into two groups: transfusion-free group(n=21) and allogeneic transfusion group(n=28). There were 13 males and 8 females aged of (56.3±11.6) years in the transfusion-free group;and there were 16 males and 12 females aged (54.3±14.2)years in the allogeneic transfusion group. The transplant recipients who had not adopted transfusion management strategy from January to July 2019 were included as control group(27 males and 13 females,aged of (58.9±14.1)years). The clinical data of patients in perioperative period were collected to compare whether there were differences in the recovery of liver function and early complications among the three groups, one-way ANOVA test, rank-sum test, and χ2 test were used for data analysis. Results: The amount of intraoperative blood loss in both the transfusion-free group and the transfusion group was less than that in the control group((454.2±271.3)ml vs.(673.6±333.4)ml vs.(890.3±346.7)ml;q=-6.342,-5.286,both P<0.05).The duration of stay in ICU of the transfusion-free group was less than that of the transfusion group and control group((36.4±9.1)hours vs.(44.3±14.9)hours vs.(58.2±21.1)hours;q=-4.432,-3.824,both P<0.05).The mean ALT level at 7 days after operation was significantly lower in the transfusion-free group than in the control group((56.8±32.1)U/L vs.(89.6±45.6)U/L;q=-3.358,P<0.05). Conclusions: The improvement of multi-disciplinary transfusion management technology aimed at transfusion-free liver transplantation can effectively reduce intraoperative hemorrhage and help to avoid surgical transfusion. Transfusion-free liver transplantation is beneficial to the early postoperative recovery,and its long-term clinical significance is worthy of further clinical research.
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Affiliation(s)
- D Z Tian
- Organ Transplant Center,Tianjin First Central Hospital,Tianjin 300192,China
| | - D H Teng
- Organ Transplant Center,Tianjin First Central Hospital,Tianjin 300192,China
| | - Y Yu
- Organ Transplant Center,Tianjin First Central Hospital,Tianjin 300192,China
| | - J J Li
- Organ Transplant Center,Tianjin First Central Hospital,Tianjin 300192,China
| | - W T Jiang
- Organ Transplant Center,Tianjin First Central Hospital,Tianjin 300192,China
| | - W Gao
- Organ Transplant Center,Tianjin First Central Hospital,Tianjin 300192,China
| | - J Z Cai
- Organ Transplant Center,Tianjin First Central Hospital,Tianjin 300192,China
| | - Y M Zhang
- Department of Hepatobiliary Surgery,Tianjin First Central Hospital,Tianjin 300192,China
| | - N Ma
- Organ Transplant Center,Tianjin First Central Hospital,Tianjin 300192,China
| | - W L Yu
- Department of Anesthesiology,Tianjin First Central Hospital,Tianjin 300192,China
| | - Y Q Weng
- Department of Anesthesiology,Tianjin First Central Hospital,Tianjin 300192,China
| | - D H Li
- Department of Transfusion,Tianjin First Central Hospital,Tianjin 300192,China
| | - W Liu
- Department of Transfusion,Tianjin First Central Hospital,Tianjin 300192,China
| | - Y H Zhou
- Tianjin Medical University First center Clinical College,Tianjin 300192,China
| | - H Zheng
- Organ Transplant Center,Tianjin First Central Hospital,Tianjin 300192,China
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Zhang LJ, Liu J, Yu WL, Ren Y, Zhang P, Yu CY, He H. [Analysis of the relationship between long-term exposure to PM2.5 and sex hormone levels of female sanitation workers in Urumqi]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:888-891. [PMID: 32842319 DOI: 10.3760/cma.j.cn112150-20190620-00494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
From June 2017 to June 2018, female sanitation workers engaged in road cleaning in a district of Urumqi City, as well as government and logistics women participating in national health examination in the same community were recruited as particulate matter 2.5 (PM2.5) exposure group and control group respectively. The contents of follicle stimulating hormone (FSH) and luteinizing hormone (LH) in the PM2.5 exposed group were lower than those in the control group (all P values < 0.05). Further analysis showed that the content of FSH in the exposure group at the age of 35-39, 40-44 and 45-49 years old was lower than that of the control group (all P values < 0.05). The content of LH in the exposed group at the age of 35-39 and 45-49 years old was lower than that of the control group (all P values < 0.05). The content of FSH in the exposed group with the length of service less than 5, about 5-9 and more than 10 years was lower than that of the control group (all P values < 0.05). The content of LH in the exposed group with the length of service about 5-9 and more than 10 year was lower than that of the control group (all P values < 0.05).
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Affiliation(s)
- L J Zhang
- Urumqi Center for Dieases Control and Prevention, Urumqi 830002,China
| | - J Liu
- Urumqi Center for Dieases Control and Prevention, Urumqi 830002,China
| | - W L Yu
- Occupational Hygiene and poisoning Control Institute Center for Disease Control and Prevention, Beijing 100050, China
| | - Y Ren
- Tianshan District Center for Disease Control and Prevention in Urumqi, Urumqi 830002, China
| | - P Zhang
- Urumqi Center for Dieases Control and Prevention, Urumqi 830002,China
| | - C Y Yu
- Occupational Hygiene and poisoning Control Institute Center for Disease Control and Prevention, Beijing 100050, China
| | - H He
- Urumqi Center for Dieases Control and Prevention, Urumqi 830002,China
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Yang FC, Li JD, Duan AQ, Bo ZY, Shen NJ, Zhu B, Yu WL, Cui LJ, Wang X, Yu LH, Yin L, Fu XH, Zhang YJ, Qiu YH. [Discussion on pT3 staging in TNM staging of AJCC 8(th) edition gallbladder carcinoma]. Zhonghua Wai Ke Za Zhi 2019; 57:834-839. [PMID: 31694132 DOI: 10.3760/cma.j.issn.0529-5815.2019.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To discuss the rationality of stage pT3 in the AJCC 8(th) TNM criteria of gallbladder carcinoma. Methods: A retrospective study was performed to analyze the clinical and pathological data of 88 patients with pT3 gallbladder carcinoma admitted to Department of Second Biliary Surgery of Eastern Hepatobiliary Surgery Hospital, affiliated to Naval Medical University from May 2013 to September 2018.pT3 stage tumors were divided into two groups: (1) pT3a stage: tumors had penetrated serosa but not directly invaded liver and/or an adjacent organ or structure; (2) pT3b stage: tumor penetrating serosa and directly invaded liver and/or an adjacent organ or structure. There were 45 patients with pT3a stage, including 15 males and 30 females, aged 36 to 80 years, with a median age of 59 years; 43 patients with pT3b, including 24 males and 19 females, aged 41 to 78 years old, median aged 63 years old.Patients with pT3a and pT3b were further divided into two groups respectively: radical resection group and extended radical resection group according to surgical radicalization. Independent sample t-test was used for comparison between two groups with normal distribution measurement data. Wilcoxon rank sum test was used between groups of non-normally distributed measurement data.The comparison of the count data was performed by χ(2) test or Fisher exact probability method. Survival analysis was performed using Kaplan-Meier method, and survival rate was compared using Log-rank test. Results: (1)Serum total bilirubin(15.6(90.3)mmol/L), albumin(40.2(4.8)mmol/L), and CA19-9(132.90(455.78)U/ml) levels in pT3b patients were higher than that in pT3a patients(10.2(6.8)mmol/L, 41.8(4.9)mmol/L, 14.35(36.27)U/ml), respectively(Z=-3.816, -1.966, -3.739, all P<0.05),postoperative complication rate in pT3b patients(24.4%) was higher than that in pT3a patients(8.9%)(P<0.05),postoperative hospital stay(12(7)days) and overall hospital stay((26±17)days) of pT3b patients were longer than that of pT3a patients((10±5) days and (19±7)days) (P<0.05). (2) The 1-, 3-, 5-year survival rates of pT3b and pT3a patients were 53%,22%,22% and 69%, 46%,38%,and the median survival time was 13 months and 26 months, respectively. The difference in survival rates between the two groups was statistically significant(χ(2)=5.117, P=0.024). (3)The 1-, 3-year survival rates of extended radical resection group(n=19) and radical resection group(n=24) in the pT3b stage were 73%, 36% and 28%, 7%, respectively.The survival time was 20 months and 9 months,respectively,and the difference in survival rates between the two groups was statistically significant(χ(2)=4.976, P=0.026). Conclusions: pT3 gallbladder carcinoma could be further subdivided into pT3a stage and pT3b stage based on the TNM criteria of AJCC 8(th) gallbladder carcinoma. Extended radical resection for pT3b gallbladder carcinoma should be further considered after comprehensive assessment of the patient's basic condition and surgical tolerance.
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Affiliation(s)
- F C Yang
- Department of First Hepatology Surgery, Affiliated Hospital of North Sichuan Medical College; Hepatobiliary and Intestine Research Institute, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
| | - J D Li
- Department of First Hepatology Surgery, Affiliated Hospital of North Sichuan Medical College; Hepatobiliary and Intestine Research Institute, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
| | - A Q Duan
- Department of Second Biliary Surgery, Eastern Hepatobiliary Surgery Hospital, Affiliated to Naval Medical University, Shanghai 200438, China
| | - Z Y Bo
- Department of Second Biliary Surgery, Eastern Hepatobiliary Surgery Hospital, Affiliated to Naval Medical University, Shanghai 200438, China
| | - N J Shen
- Department of Second Biliary Surgery, Eastern Hepatobiliary Surgery Hospital, Affiliated to Naval Medical University, Shanghai 200438, China
| | - B Zhu
- Department of Second Biliary Surgery, Eastern Hepatobiliary Surgery Hospital, Affiliated to Naval Medical University, Shanghai 200438, China
| | - W L Yu
- Department of Second Biliary Surgery, Eastern Hepatobiliary Surgery Hospital, Affiliated to Naval Medical University, Shanghai 200438, China
| | - L J Cui
- Department of Second Biliary Surgery, Eastern Hepatobiliary Surgery Hospital, Affiliated to Naval Medical University, Shanghai 200438, China
| | - X Wang
- Department of Second Biliary Surgery, Eastern Hepatobiliary Surgery Hospital, Affiliated to Naval Medical University, Shanghai 200438, China
| | - L H Yu
- Department of Second Biliary Surgery, Eastern Hepatobiliary Surgery Hospital, Affiliated to Naval Medical University, Shanghai 200438, China
| | - L Yin
- Department of Second Biliary Surgery, Eastern Hepatobiliary Surgery Hospital, Affiliated to Naval Medical University, Shanghai 200438, China
| | - X H Fu
- Department of Second Biliary Surgery, Eastern Hepatobiliary Surgery Hospital, Affiliated to Naval Medical University, Shanghai 200438, China
| | - Y J Zhang
- Department of Second Biliary Surgery, Eastern Hepatobiliary Surgery Hospital, Affiliated to Naval Medical University, Shanghai 200438, China
| | - Y H Qiu
- Department of Second Biliary Surgery, Eastern Hepatobiliary Surgery Hospital, Affiliated to Naval Medical University, Shanghai 200438, China
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Yu WL, Sun Y, Lu ZH, Geng XP. [Mutations in the BSCL2 gene cause congenital generalized lipodystrophy complicated by severe acute pancreatitis: a case report]. Zhonghua Nei Ke Za Zhi 2019; 58:63-64. [PMID: 30605953 DOI: 10.3760/cma.j.issn.0578-1426.2019.01.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- W L Yu
- Department of Intensive Care Unit, Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China
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Wang ZH, Yu WL, Shen Z, Ye Y, Hu L, Yu GX, Sun LG. [An analysis of the evaluation results of symptom checklist 90 for occupational females in different industries]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 35:840-843. [PMID: 29316756 DOI: 10.3760/cma.j.issn.1001-9391.2017.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the mental health of occupational females in different industries. Methods: We investigated the psychologic status of Chinese occupational females using symptom checklist 90. And statistical software was applied to analyze results of symptom checklist 90. Results: There were 41, 166 effec-tive questionnaires. The number of positive questionnaires was 14 361, and the positive rate was 34.89%. The positive rate of obsessive-compulsive factor was 24.07%. The positive rate of somatization factor was 16.12%. The positive rate of depression was 15.50%. The median positive item number was 20 (IQR: 34) , and the median split of positive symptoms was 2.11 (IQR: 0.37) . There were differences in the positive rate of SCL-90 scale among different age groups, different regions and different industries, the difference was statistically significant (P<0.05) . The positive rate of SCL-90 for the occupational females was 34.89%. The top three factors of the high-est positive SCL-90 were obsessive-compulsive symptoms, somatization and depression. Conclusion: There were differences in the psychological status of occupational females for different regions, different ages and different occupations.
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Affiliation(s)
- Z H Wang
- Institute of Occupational Health, Beijing Center for Diseases Control and Prevention & Research Center of Preventive Medicine, Beijing 100020, China
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Ling YL, Mei LY, Wei TT, Zhang LL, Lu L, Yu WL. [An investigation of reproductive health in female workers engaged in administrative management]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 36:288-291. [PMID: 29996253 DOI: 10.3760/cma.j.issn.1001-9391.2018.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the reproductive health status of female workers engaged in administrative management, and to provide a reference for protecting the reproductive health of female workers. Methods: From April to November, 2016, a cross-sectional survey was performed for 2717 female workers aged 18-60 years and engaged in administrative management from 13 cities and provinces in China, and a questionnaire was used to investigate their general information, occupational hazards in workplace, and reproductive health status, and the reproductive health status of female workers was analyzed. Results: Of all 2 717 female workers, 1 170 had gynecological diseases or symptoms, resulting in an incidence rate of 43.06%, and among these workers, 11.15% had abnormal menstruation, 34.64% had infertility, and 38.76% had a history of abortion. There were significant differences in the rates of abnormal results of gynecological examination, abnormal menstruation, abortion, and infertility between the female workers in different age groups (P<0.01) . Unhealthy living habits and major events were risk factors for gynecological diseases, abnormal menstruation, and abortion (P<0.05) ; bad working status was a risk factor for gynecological diseases and abortion (P<0.05) ; exposure to harmful factors was a risk factor for gynecological diseases and abnormal menstruation (P<0.05) . Conclusion: Living habits, major events, working status, and occupational harmful factors have certain influence on reproductive health of female workers engaged in administrative management. Occupational health protection should be strengthened, working patterns should be improved, self-protection awareness should be raised, and health protection should be enhanced for women of childbearing age to protect and promote the reproductive health of female workers.
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Affiliation(s)
- Y L Ling
- Beijing Fengtai district center for disease control and prevention, Beijing 100071, China
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12
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Wang ZH, Ye Y, Shen Z, Sun LG, Hu L, Yu WL, Xu M, Sun ZF, Cheng JD, Sun X. [A meta-analysis of Symptom Checklist-90 assessment results in Chinese nurses]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 36:129-133. [PMID: 29699014 DOI: 10.3760/cma.j.issn.1001-9391.2018.02.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the application of Symptom Checklist-90 (SCL-90) in Chinese nurses. Methods: We performed a literature search for articles in Chinese on the mental health of nurses investigated using the SCL-90 that were published from January 2007 to December 2016. A total of 129 articles were included, involving 178 groups of valid samples as well as 36316 subjects in 27 provinces or cities in China. The metafor package of R 3.2.1 software and Excel were used for meta-analysis and data statistics. Results: Heterogeneity was identified for the nine factors included in the literature data (Q test: P<0.05; I(2) test >40%) , so a random effects model was used. For all factors except interpersonal relationship factor, the 95% confidence intervals of the pooled effect sizes did not include 0. For all factors except interpersonal relationship factor (Egger test: P<0.05) , no significant asymmetry or incompleteness appeared in the funnel plots. The fail-safe number of each factor was much larger than 5k+10. The merger scores and mean values of nine factors were higher than the national norm. Conclusion: The SCL-90 is widely used in the study of mental status of Chinese nurses, but the SCL-90 norm for nurses is lacking.
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Affiliation(s)
- Z H Wang
- Institute of Occupational Health, Beijing Center for Diseases Prevention and Control & Center of Preventive Medical Research, Beijing 100020, China
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13
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Kou ZX, Wang SL, Chen ZL, He YH, Yu WL, Mei LY, Zhang HD. [Influencing factors for reproductive health of female workers in petrochemical industry]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 36:139-143. [PMID: 29699017 DOI: 10.3760/cma.j.issn.1001-9391.2018.02.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the reproductive health status of female workers in petrochemical industry, and to provide a reference for improving reproductive health status and developing preventive and control measures for female workers in petrochemical industry. Methods: A face-to-face questionnaire survey was performed from January to October, 2016. The Questionnaire on Women's Reproductive Health was used to investigate the reproductive health of female workers in petrochemical industry. The multivariate logistic regression model was used to identify the influencing factors for reproductive health of female workers in petrochemical industry. Results: Among the 7485 female workers, 1 268 (40.9%) had abnormal menstrual period, 1 437 (46.4%) had abnormal menstrual volume, 177 (28.5%) had hyperplasia of mammary glands, and 1 807 (24.6%) had gynecological inflammation. The reproductive system diseases in female workers in petrochemical industry were associated with the factors including age, marital status, education level, unhealthy living habits, abortion, overtime work, work shift, workload, video operation, occupational exposure, positive events, and negative events, and among these factors, negative events (odds ratio[OR]= 1.856) , unhealthy living habits (OR=1.542) , and positive events (OR=1.516) had greater impact on reproductive system diseases. Conclusion: Many chemical substances in the occupational environment of petrochemical industry can cause damage to the reproductive system, which not only affects the health of the female workers, but also poses potential threats to the health of their offspring. Occupational exposure, unhealthy living habits, overtime work, and work shift have great influence on reproductive system diseases in female workers.
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Affiliation(s)
- Z X Kou
- Gansu province center for disease control and prevention, Lanzhou 73000, China
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14
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Wang YY, Han CY, Yu WL, Wang H, Gong L, Zhou L. [An analysis of mental health status of female migrant workers in a city]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 36:110-114. [PMID: 29699009 DOI: 10.3760/cma.j.issn.1001-9391.2018.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the mental health status of female migrant workers in a city. Methods: From August to December, 2016, cluster random sampling was used to select female migrant workers aged 16-60 years from 10 districts of this city, and Symptom Checklist-90 (SCL-90) and a questionnaire on general status were used. Results: Among these female migrant workers, the detection rates of obsessive-compulsion, hostility, and depression were 6.62%, 4.18%, and 4.10%, respectively. There was a significant difference in the detection rate of mental health issues between the female migrant workers from different districts, with different occupations, or with different education levels (P<0.05) . Districts, occupation, and education level were associated with mental health issues, after adjustment for age (P<0.05) . Conclusion: Although female migrant workers in this city have a high mental health level, the issues such as obsessive-compulsion, hostility, and depression should be taken seriously. Targeted mental health surveys and comprehensive interventions should be implemented to improve the mental health level of female migrant workers.
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Affiliation(s)
- Y Y Wang
- Health Department, Shenzhen Maternity and Child Health Hospitals, Shenzhen 518028, China
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15
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Tong Y, Jiang ZQ, Zhang YX, Jia JL, Lu W, Wang J, Tang HJ, Zhang M, Guo XN, Li T, Jiang HY, Yu WL, Lou JL. [Analyzing the mental health status and its impact factors among female nurses in China]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 36:115-118. [PMID: 29699010 DOI: 10.3760/cma.j.issn.1001-9391.2018.02.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the mental health status and its impact factors among nurses, finding ways to improve the mental health of nurses. Methods: A total of 13 425 female healthcare workers aged from 18 to 65 were selected as study objects. The survey was conducted with unified design questionnaire. The survey included the basic situation of the individuals and SCL-90 questionnaire. Comparing the female doctors, the mental health status and its impact factors of nurses were analyzed. Results: The income, age, education and occupation, which include shift work, heavy work load and overtime work are different between nurses and doctors. The main mental health problems of nurses were obsessive-compulsive symptoms, depressive symptoms and somatization. The results of univariate analysis indicated that shift work, overtime work, and heavy work load affected the positive rate of each factor. The results of multivariate analysis showed that occupation, shift work, overtime work, and heavy work load have significant adverse effects on the positive rate of the total score in female healthcare workers (P<0.01) . The positive rate of each dimension of SCL-90 in nurses is significantly higher than that of doctors. Conclusion: The mental health problems of nurses are significantly higher than doctors. The main reasons are low occupational level and adverse workstyles which include shift work, heavy workload and so on. Health administration and hospital management departments should pay much more attention to the mental health of nurses, improving their mental health through a variety of ways.
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Affiliation(s)
- Y Tong
- Zhejiang Academy of Medical Science, Institute of Occupational Diseases, Zhejiang, Hangzhou 310013 China
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16
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Yu CY, Yu WL, Xu M, Xing ZL. [Investigation and Analysis on shift work female workers' and the impact on reproductive health]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 36:126-129. [PMID: 29699013 DOI: 10.3760/cma.j.issn.1001-9391.2018.02.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the distribution of shift work of female workers in different industries and the relationship between shift work and reproductive health, then provide reference for the female workers' labor protection. Methods: From June to September 2016, cluster sampling questionnaire survey was performed among female workers from 11 industries including electronics, medicine and health, pharmacy. To investigate the general information, shift-work information, reproductive health and childbearing history of these female workers. Results: A total of 63 711 usable questionnaires were collected, resulting in a response rate of 96.94%.A total of 13 546 workers worked in shifts, accounting for 21.26%, the highest proportion was in the medical industry 30.61%, metallurgy 30.81%, petrochemical engineerin 26.78% respectively. Compared with the workers who did not work in shifts, those who worked in shifts had significantly higher rate of abnormal menstruation, rate of reproductive system infection in married workers, the rate of infertility (χ(2)=19.108、10.673、21.510, P<0.05) ; Compared with the workers who did not work in nightshifts, those who worked in nightshifts had significantly higher rate of abnormal menstruation, rate of reproductive system infection among married workers and rate of infertility (χ(2)=140.043、71.901、29.024, P<0.01) . Conclusion: The highest rate of shift work was in the medical industry, metallurgy, petrochemical engineering industry. Workers who worked in shifts have serious reproductive health issues, the occurrence of abnormal menstruation, reproductive system infection and infertility may associated with shift work.
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Affiliation(s)
- C Y Yu
- National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China
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17
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Sun TW, Yu WL, Zhu YJ, Chen F, Zhang YG, Jiang YY, He YH. Porous Nanocomposite Comprising Ultralong Hydroxyapatite Nanowires Decorated with Zinc-Containing Nanoparticles and Chitosan: Synthesis and Application in Bone Defect Repair. Chemistry 2018; 24:8809-8821. [DOI: 10.1002/chem.201800425] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Indexed: 12/22/2022]
Affiliation(s)
- Tuan-Wei Sun
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050 P. R. China
- University of Chinese Academy of Sciences; Beijing 100049 P. R. China
| | - Wei-Lin Yu
- Department of Orthopedics; Shanghai Jiao Tong University Affiliated Sixth People's Hospital; Shanghai 200233 P. R. China
| | - Ying-Jie Zhu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050 P. R. China
- University of Chinese Academy of Sciences; Beijing 100049 P. R. China
| | - Feng Chen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050 P. R. China
| | - Yong-Gang Zhang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050 P. R. China
- University of Chinese Academy of Sciences; Beijing 100049 P. R. China
| | - Ying-Ying Jiang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050 P. R. China
- University of Chinese Academy of Sciences; Beijing 100049 P. R. China
| | - Yao-Hua He
- Department of Orthopedics; Shanghai Jiao Tong University Affiliated Sixth People's Hospital; Shanghai 200233 P. R. China
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital; School of Biomedical Engineering; Shanghai 200233 P. R. China
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Xu M, Yu WL, Xing ZL, Yao HY, Sun JF, Yu CY. [An investigation of reproductive health and related influencing factors in female staff in six industries in seven provinces in China]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 34:924-927. [PMID: 28241682 DOI: 10.3760/cma.j.issn.1001-9391.2016.12.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the reproductive health status in female staff, and to develop labor protection strategies for female staff. Methods: From May to November, 2015, cluster sampling was performed in the industries of medicine and health, petrochemical engineering, metallurgy, railway, mechanical manufacturing, and electronics in seven provinces (municipalities directly under the Central Government and autonomous regions) . A questionnaire surveywas performed for female staff, and the investigation covered general information, occupational history andexposure to occupational hazards, and reproductive health and childbearing history. Results: A total of 14 614 usable questionnaires were collected, resulting in a response rate of 96.00%. The meanage of all female staff was 36 years. Of all female staff, 80.06% were married and 40.84% were exposed to hazardous factors; 28.14% had abnormal menstruation, and the female staff in theelectronics and railway industries had higher rates of abnormal menstruation (32.28% and 32.11%, respectively) . The overall rate of abnormal gynecological examination results was 18.29%, and the female staff in therailway industry had the highest rate (29.49%) . Of all female staff, 49.01% reported gynecological diseases in the past, among which hyperplasia of mammary glands accounted for 27.11% and inflammation in the reproductive system accounted for 36.31%. The medical staff had higher rates of abnormal menstruation (33.11%) and abnormal gynecological examination results (27.46%) compared with the staff engaged in other occupations. With normal sexual life and no contraceptive measures, the 1-, 2-, and 3-year infertility rates were 24.26%, 11.88%, and 8.88%, respectively. Conclusion: The female staff in the industries of medicine and health, railway, and electronics have serious reproductive health issues. Labor protection should be enhanced and working environment should be improved.
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Affiliation(s)
- M Xu
- National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China
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19
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Sun TW, Yu WL, Qi C, Chen F, Zhu YJ, He YH. Multifunctional simvastatin-loaded porous hydroxyapatite microspheres/collagen composite scaffold for sustained drug release, angiogenesis and osteogenesis. J Control Release 2017. [DOI: 10.1016/j.jconrel.2017.03.266] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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20
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Sun TW, Yu WL, Zhu YJ, Yang RL, Shen YQ, Chen DY, He YH, Chen F. Hydroxyapatite Nanowire@Magnesium Silicate Core-Shell Hierarchical Nanocomposite: Synthesis and Application in Bone Regeneration. ACS Appl Mater Interfaces 2017; 9:16435-16447. [PMID: 28481082 DOI: 10.1021/acsami.7b03532] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Multifunctional biomaterials that simultaneously combine high biocompatibility, biodegradability, and bioactivity are promising for applications in various biomedical fields such as bone defect repair and drug delivery. Herein, the synthesis of hydroxyapatite nanowire@magnesium silicate nanosheets (HANW@MS) core-shell porous hierarchical nanocomposites (nanobrushes) is reported. The morphology of the magnesium silicate (MS) shell can be controlled by simply varying the solvothermal temperature and the amount of Mg2+ ions. Compared with hydroxyapatite nanowires (HANWs), the HANW@MS core-shell porous hierarchical nanobrushes exhibit remarkably increased specific surface area and pore volume, endowing the HANW@MS core-shell porous hierarchical nanobrushes with high-performance drug loading and sustained release. Moreover, the porous scaffold of HANW@MS/chitosan (HANW@MS/CS) is prepared by incorporating the HANW@MS core-shell porous hierarchical nanobrushes into the chitosan (CS) matrix. The HANW@MS/CS porous scaffold not only promotes the attachment and growth of rat bone marrow derived mesenchymal stem cells (rBMSCs), but also induces the expression of osteogenic differentiation related genes and the vascular endothelial growth factor (VEGF) gene of rBMSCs. Furthermore, the HANW@MS/CS porous scaffold can obviously stimulate in vivo bone regeneration, owing to its high bioactive performance on the osteogenic differentiation of rBMSCs and in vivo angiogenesis. Since Ca, Mg, Si, and P elements are essential in human bone tissue, HANW@MS core-shell porous hierarchical nanobrushes with multifunctional properties are expected to be promising for various biomedical applications such as bone defect repair and drug delivery.
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Affiliation(s)
- Tuan-Wei Sun
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | | | - Ying-Jie Zhu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Ri-Long Yang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Yue-Qin Shen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | | | | | - Feng Chen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
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Yu WL, Sun TW, Qi C, Zhao HK, Ding ZY, Zhang ZW, Sun BB, Shen J, Chen F, Zhu YJ, Chen DY, He YH. Enhanced osteogenesis and angiogenesis by mesoporous hydroxyapatite microspheres-derived simvastatin sustained release system for superior bone regeneration. Sci Rep 2017; 7:44129. [PMID: 28287178 PMCID: PMC5347005 DOI: 10.1038/srep44129] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 02/03/2017] [Indexed: 01/25/2023] Open
Abstract
Biomaterials with both excellent osteogenic and angiogenic activities are desirable to repair massive bone defects. In this study, simvastatin with both osteogenic and angiogenic activities was incorporated into the mesoporous hydroxyapatite microspheres (MHMs) synthesized through a microwave-assisted hydrothermal method using fructose 1,6-bisphosphate trisodium salt (FBP) as an organic phosphorous source. The effects of the simvastatin-loaded MHMs (S-MHMs) on the osteogenic differentiation of rat bone marrow mesenchymal stem cells (rBMSCs) and angiogenesis in EA.hy926 cells were investigated. The results showed that the S-MHMs not only enhanced the expression of osteogenic markers in rBMSCs but also promoted the migration and tube formation of EA.hy926 cells. Furthermore, the S-MHMs were incorporated into collagen matrix to construct a novel S-MHMs/collagen composite scaffold. With the aid of MHMs, the water-insoluble simvastatin was homogenously incorporated into the hydrophilic collagen matrix and presented a sustained release profile. In vivo experiments showed that the S-MHMs/collagen scaffolds enhanced the bone regeneration and neovascularization simultaneously. These results demonstrated that the water-insoluble simvastatin could be incorporated into the MHMs and maintained its biological activities, more importantly, the S-MHMs/collagen scaffolds fabricated in this study are of immense potential in bone defect repair by enhancing osteogenesis and angiogenesis simultaneously.
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Affiliation(s)
- Wei-Lin Yu
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China
| | - Tuan-Wei Sun
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China.,University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Chao Qi
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China.,University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Hua-Kun Zhao
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China
| | - Zhen-Yu Ding
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China
| | - Zhi-Wang Zhang
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China
| | - Ben-Ben Sun
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China
| | - Ji Shen
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China
| | - Feng Chen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China.,University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Ying-Jie Zhu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China.,University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Dao-Yun Chen
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China
| | - Yao-Hua He
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China.,Shanghai Jiao Tong University Affiliated Sixth People's Hospital, School of Biomedical Engineering, 600 Yishan Road, Shanghai 200233, China
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22
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Deng Q, Gao Y, Jiang H, Chen CZ, Li CH, Yu WL, Chen X, Zhang JB. Association of a hypoxia-inducible factor-3α gene polymorphism with superovulation traits in Changbaishan black cattle. Genet Mol Res 2015; 14:14539-47. [PMID: 26600513 DOI: 10.4238/2015.november.18.17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This study was designed to examine a single nucleotide polymorphism (SNP) in the HIF-3α gene in three hundred Changbaishan black cattle using PCR-restriction fragment length polymorphism to determine whether there is an association between this SNP and superovulation. The cloning and sequencing results indicate that the polymorphism is due to a point mutation at the 278-bp position in the HIF-3α gene, resulting in 3 genotypes (AA, AB, and BB). Association analysis indicated that the polymorphism has a significant effect on the number of unfertilized embryos (NUE) (P < 0.05) in the cattle. Cattle with genotype BB had a higher NUE than those with genotype AA, but the difference in NUE between AB and AA or BB was not significant. The polymorphism also has a highly significant effect on the number of degenerative embryos (NDE) and the number of total embryos (NTE) (P < 0.01). Genotype BB was associated with a higher NDE than AA, but the difference in NDE between AB and AA or BB was not significant. Genotype BB showed a higher NTE than AA or AB, but the difference in NTE between AA and AB was not significant. No significant conclusions could be drawn with respect to susceptibility to other traits. HIF-3α could serve as a useful biomarker for donor selection, superovulation improvement, and assisted fertility.
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Affiliation(s)
- Q Deng
- Laboratory Animal Center, College of Animal Sciences, Jilin University, Changchun, China
| | - Y Gao
- Laboratory Animal Center, College of Animal Sciences, Jilin University, Changchun, China
| | - H Jiang
- Laboratory Animal Center, College of Animal Sciences, Jilin University, Changchun, China
| | - C Z Chen
- Laboratory Animal Center, College of Animal Sciences, Jilin University, Changchun, China
| | - C H Li
- Laboratory Animal Center, College of Animal Sciences, Jilin University, Changchun, China
| | - W L Yu
- Beijing AnBo Embryo Biotech Center, Beijing, China
| | - X Chen
- Department of pharmacology, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - J B Zhang
- Laboratory Animal Center, College of Animal Sciences, Jilin University, Changchun, China
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23
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Yu WL, Wu C, Chau HHL. Mimicker of Breast Cancer: Mammary Fibromatosis. Hong Kong J Radiol 2015. [DOI: 10.12809/hkjr1514281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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24
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Yu WL, Sitt JCM, Fung SY, Tang APY. Recent Advances and Application of Breast Imaging in Clinical Practice. Hong Kong J Radiol 2015. [DOI: 10.12809/hkjr1515319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Li PS, Lee IL, Yu WL, Sun JS, Jane WN, Shen HH. A novel albumin-based tissue scaffold for autogenic tissue engineering applications. Sci Rep 2014; 4:5600. [PMID: 25034369 PMCID: PMC4102902 DOI: 10.1038/srep05600] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Accepted: 06/19/2014] [Indexed: 01/12/2023] Open
Abstract
Tissue scaffolds provide a framework for living tissue regeneration. However, traditional tissue scaffolds are exogenous, composed of metals, ceramics, polymers, and animal tissues, and have a defined biocompatibility and application. This study presents a new method for obtaining a tissue scaffold from blood albumin, the major protein in mammalian blood. Human, bovine, and porcine albumin was polymerised into albumin polymers by microbial transglutaminase and was then cast by freeze-drying-based moulding to form albumin tissue scaffolds. Scanning electron microscopy and material testing analyses revealed that the albumin tissue scaffold possesses an extremely porous structure, moderate mechanical strength, and resilience. Using a culture of human mesenchymal stem cells (MSCs) as a model, we showed that MSCs can be seeded and grown in the albumin tissue scaffold. Furthermore, the albumin tissue scaffold can support the long-term osteogenic differentiation of MSCs. These results show that the albumin tissue scaffold exhibits favourable material properties and good compatibility with cells. We propose that this novel tissue scaffold can satisfy essential needs in tissue engineering as a general-purpose substrate. The use of this scaffold could lead to the development of new methods of artificial fabrication of autogenic tissue substitutes.
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Affiliation(s)
- Pei-Shan Li
- 1] Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan [2] Tissue Regeneration Product Technology Division, Biomedical Technology and Device Research Laboratories, Industrial Technology Research Institute, Hsinchu County 310, Taiwan [3]
| | - I-Liang Lee
- 1] c/o Rm. 624, Bldg. 53, No. 195, Sec. 4, Chung Hsing Rd., Chutung Township, Hsinchu County 310, Taiwan [2]
| | - Wei-Lin Yu
- Tissue Regeneration Product Technology Division, Biomedical Technology and Device Research Laboratories, Industrial Technology Research Institute, Hsinchu County 310, Taiwan
| | - Jui-Sheng Sun
- Department of Orthopedic Surgery, School of Medicine, College of Medicine, National Taiwan University, Taipei 10051 and Department of Orthopaedic Surgery, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu 30059, Taiwan
| | - Wann-Neng Jane
- Institute of Plant and Microbial Biology, Academia Sinica, Nankang, Taipei 11529, Taiwan
| | - Hsin-Hsin Shen
- Tissue Regeneration Product Technology Division, Biomedical Technology and Device Research Laboratories, Industrial Technology Research Institute, Hsinchu County 310, Taiwan
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Yu WL, Wong SM, Wang K, Ahuja AT. Accuracy of 18F-fluorodeoxyglucose Positron Emission Tomography/Computed Tomography for Detection of Recurrent or Metastatic Colorectal Carcinoma in Patients with Rising Carcinoembryonic Antigen Levels. Hong Kong J Radiol 2014. [DOI: 10.12809/hkjr1413186] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Tian QW, Xuan C, Wang HW, Zhao JX, Yu WL, Gao G, Zhang BB, Lun LM. Diagnostic accuracy of glycosylated hemoglobin in chinese patients with gestational diabetes mellitus: a meta-analysis based on 2,812 patients and 5,918 controls. Genet Test Mol Biomarkers 2013; 17:687-95. [PMID: 23879397 DOI: 10.1089/gtmb.2013.0099] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND AND AIMS The accuracy of glycosylated hemoglobin (HBA1c) detection for the diagnosis of gestational diabetes mellitus (GDM) has been extensively studied in the Chinese population, but the exact role of these detections remains controversial. The present meta-analysis was performed to establish the overall accuracy of HBA1c for the diagnosis of Chinese patients with GDM. METHODS After a systematic review of related studies, the sensitivity, specificity, positive likelihood ratio (PLR), negative likelihood ratio (NLR), diagnostic odds ratio (DOR), and other measures about the accuracy of HBA1c in the diagnosis of GDM were pooled using random-effects models. The summary receiver operating characteristic (SROC) curve analysis was used to summarize the overall test performance. RESULTS Forty-one studies included 2812 Chinese patients with GDM and 5918 controls were included in our meta-analysis. The summary estimates for HBA1c in the diagnosis of GDM in the studies included were as follows: sensitivity 0.762 (95% confidence interval [CI]: 0.746-0.777), specificity 0.917 (95% CI: 0.910-0.924), PLR 8.21 (95% CI: 3.77-17.89), NLR 0.20 (95% CI: 0.09-0.44), and DOR 41.40 (95% CI: 11.47-149.38). Our data showed that the SROC curve is positioned near the desirable upper left corner of the SROC curve, while the area under curve (AUC) was 0.93 with a Q* value of 0.865. CONCLUSIONS Measurement of HBA1c is likely to be a useful diagnostic tool for confirming GDM. The results of HBA1c should be interpreted in parallel with clinical findings and the results of conventional tests.
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Affiliation(s)
- Qing-Wu Tian
- Department of Clinical Laboratory, The Affiliated Hospital of Medical College, Qingdao University, Qingdao, China
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Abstract
Orbital dermoid cyst is a rare cause of orbital tumor in the adult population. Most of the orbital dermoids are extraconal, arising adjacent to bone suture and occurring in the pediatric patients. Deep orbital dermoid cyst located entirely intraconally is extremely rare. We report a case of intraconal orbital dermoid in an adult patient with CT and MRI evaluation.
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Affiliation(s)
- W L Yu
- Department of Imaging and Interventional Radiology, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong.
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Lee IL, Li PS, Yu WL, Shen HH. Synthesis and interfacing of biocompatible iron oxide nanoparticles through the ferroxidase activity of Helicobacter Pylori ferritin. Biofabrication 2012; 4:045001. [PMID: 23013844 DOI: 10.1088/1758-5082/4/4/045001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Ferritin is an iron storage protein that is often used to coat metallic nanoparticles, such as iron oxide nanoparticles (IONPs). However, the synthesis and biocompatibility of ferritin-coated IONPs remain unclear. Therefore, this study reports the synthesis of a ferritin gene cloned and expressed from Helicobacter pylori (HPFn). The ferroxidase activity of the synthase HPFn was used for the de novo synthesis of HPFn-coated IONPs under mild conditions. Gel filtration chromatography and transmission electron microscopy analyses demonstrated that the core-shell structure of both the 5.0 nm IONP nanocore and the 12.4 nm HPFn shell were correctly assembled. The cellular uptake of mouse macrophage cells (RAW 264.7 cells) has shown that only a few HPFn-coated IONPs (3%) were taken up after 24 h of incubation. This study compares the biocompatibility of HPFn-coated IONPs, superparamagnetic iron oxide nanoparticles (SPIOs) and ferric salt (ferric ammonium citrate) in respect to cell growth inhibition, reactive oxygen species generation and pro-inflammatory cytokine TNF-α release. Assessment results showed that the responses elicited by HPFn-coated IONPs were similar to those elicited by SPIO treatment but milder than those elicited by ferric salt treatment. This accounts for the notion that ferritin-coated IONPs are biocompatible iron agents. These findings show that the ferroxidase activity of ferritin can be used to synthesize biocompatible IONPs. The favorable properties of HPFn-coated IONPs suggest that they can be used as a non-macrophage contrast agent through further surface conjugation.
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Affiliation(s)
- I-Liang Lee
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu 300, Taiwan
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Lee IL, Li PS, Yu WL, Shen HH. Prokaryotic expression, refolding, and purification of functional human vascular endothelial growth factor isoform 165: purification procedures and refolding conditions revisited. Protein Expr Purif 2010; 76:54-8. [PMID: 20826215 DOI: 10.1016/j.pep.2010.08.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2010] [Revised: 08/16/2010] [Accepted: 08/30/2010] [Indexed: 12/31/2022]
Abstract
Human vascular endothelial growth factor isoform 165 (VEGF165) is the first known member belonging to the VEGF protein family that plays a critical role in new blood vessel formation in vivo. This study presents a new protocol with optimized conditions for rapidly producing untagged recombinant and biological active human VEGF165 (rhVEGF165) using Escherichia coli cells. Protein was isolated from inclusion bodies, purified by gel filtration and ion exchange chromatography, and subjected to protein refolding and renaturation. The biological activity of rhVEGF165 is comparable with VEFG from eukaryotic source according to human umbilical vein endothelial cells (HUVEC) proliferation assay. Therefore, the present procedures provide a fast and easy way to produce this therapeutic protein.
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Affiliation(s)
- I-Liang Lee
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu 300, Taiwan
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31
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Nielsen K, Yu WL. Serological diagnosis of brucellosis. Pril (Makedon Akad Nauk Umet Odd Med Nauki) 2010; 31:65-89. [PMID: 20703184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
AIM To present a review and to describe the most widely used laboratory tests for serology diagnosis of brucellosis along with their pros and cons. METHODS Review the recent literature on brucellosis serology diagnostic tests. The choice of the testing strategy depends on the prevailing brucellosis epidemiological situation and the goal of testing. RESULTS The 'gold standard' for the diagnosis of brucellosis is isolation and identification of the causative bacterium, a member of Brucella sp. Isolation of Brucella sp. requires high security laboratory facilities (biological containment level 3), highly skilled personnel, an extended turnaround time for results and it is considered a hazardous procedure. Hence brucellosis is generally diagnosed by detection of an elevated level of antibody in serum or other body fluid. This is a presumptive diagnosis as other microorganisms and perhaps environmental factors can also cause increased antibody levels. CONCLUSION A large number of serological tests for brucellosis have been devised over the 100+ years since its initial isolation, starting with a simple agglutination test and progressing to sophisticated primary binding assays available today. However, no test devised to date is 100% accurate so generally serological diagnosis consists of testing sera by several tests, usually a screening test of high sensitivity, followed by a confirmatory test of high specificity.
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Affiliation(s)
- K Nielsen
- Ottawa Laboratories (Fallowfield), Canadian Food Inspection Agency, Nepean, Ontario, Canada
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Nielsen K, Yu WL, Kelly L, Williams J, Dajer A, Gutierrez E, Ramirez Cruz G, Renteria T, Bermudez R, Algire J. Validation and field assessment of a rapid lateral flow assay for detection of bovine antibody to Anaplasma marginale. J Immunoassay Immunochem 2009; 30:313-21. [PMID: 19591044 DOI: 10.1080/15321810903084749] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The lateral flow assay (LFA) is a rapid diagnostic test which may be performed under most conditions and is especially useful for field applications. This type of assay was applied to the detection of antibody to bovine Anaplasma marginale using sera from endemic areas and from areas which have been free from infection for more than 25 years. Briefly, the test uses recombinant A. marginale major surface protein 5 peptide (Msp5), immobilized on a cellulose acetate membrane. A serum sample is added to a pad containing a monoclonal antibody specific for bovine IgG(1), conjugated with colloidal gold, located at one end of the strip. The sample and gold conjugate are wicked along the membrane and if antibody is present in the serum, a visible line will form between the Msp5-antibody-conjugate immune complex in minutes. An additional band of recombinant protein A/G was added to the membrane as a positive control reaction of the monoclonal antibody conjugate. For comparison, direct examination of blood smears and a nested polymerase chain reaction (PCR) were performed on some of the samples. Using samples from herds in one endemic area, the PCR gave a sensitivity value of 9.2% while a commercial competitive enzyme immunoassay (CELISA) gave a sensitivity value of 17.2% and the LFA values of 20.5%. In a second endemic area, selected samples, all positive by direct examination gave a 71.7% sensitivity values with the PCR, 94.5% with the CELISA and 95.5% with the LFA. Using sera from a disease-free area, the specificity values were 100% for the PCR (testing a proportion of randomly selected samples), 99.5% for the CELISA and 98.0% for the LFA. It is envisaged that the validated LFA will be a useful tool for screening cattle moving from an area with infection to a disease-free area.
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Affiliation(s)
- K Nielsen
- Canadian Food Inspection Agency, Ottawa Laboratory (Fallowfield), Ottawa, Ontario, Canada.
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Nielsen K, Yu WL, Kelly L, Bermudez R, Renteria T, Dajer A, Gutierrez E, Williams J, Algire J, de Eschaide ST. Development of a lateral flow assay for rapid detection of bovine antibody to Anaplasma marginale. J Immunoassay Immunochem 2008; 29:10-8. [PMID: 18080877 DOI: 10.1080/15321810701734693] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A rapid lateral flow assay for detection of bovine antibody to Anaplasma marginale was developed. The assay used a recombinant peptide of major surface protein 5 as the antigen and a monoclonal antibody specific for bovine IgG(1) conjugated with colloidal gold beads for detection. Serum and anticoagulated blood samples were obtained from cattle in an area where anaplasmosis was endemic. The samples were selected based on positive identification of the organism in blood smears. The unclotted blood samples were used for PCR determination of the presence of A. marginale while the sera were tested by a commercial competitive enzyme immunoassay (CELISA) and by the lateral flow assay (LFA). Similar samples, collected at a Canadian sales barn, were tested by the CELISA and LFA and 10% were tested by PCR for the presence of A. marginale nucleic acid. In addition, stored serum samples from a second endemic area were tested by CELISA and LFA. Of the 114 smear positive samples, all were positive by CELISA and LFA. All samples were also positive by PCR. Samples from Canadian sources (n=524) were negative in the CELISA but 11 sera gave false positive reactions in the LFA. All samples tested were PCR negative. Of 113 samples from herds with anaplasmosis, 53 were positive in the CELISA and 50 were LFA positive.
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Affiliation(s)
- K Nielsen
- Canadian Food Inspection Agency, Ottawa Laboratory (Fallowfield), Ottawa, Ontario, Canada.
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Abstract
In this study, 4 male Qigong masters (aged 60 +/- 12) who had Qigong practicing experience for more than 30 years were tested. By using the technique of fMRI, the change of brain function under the state of Qigong was observed through the peripheral pain stimulation generated by potassium penetrating method. The fMRI examination was running on a GE signa VH/3.0 T MRI machine and block design was used. The test was repeated several times, which was carried out before and 15 min after Qigong practicing. The heart and respiration rate of these 4 Qigong masters were monitored during the whole test. SPM2 was used for the data analysis, and the result showed that before Qigong practicing, besides SI and SII-insula regions, many other Brodmann areas, the cigulate cortex, the thalamus, and the cerebellum were all activated, while 15 min after that, the activated areas were decreased obviously, which were mainly at the SII-insula region and some other Brodmann areas. Since the SII-insula region was activated in both of these two states, further analysis of the response curve was focused on it. Its response amplitude under the state of Qigong (3.5%) was greater than that before Qigong (1.2%). Our result indicated that the main manifestation of brain functional change under Qigong was functional suppressing, but in some particular regions such as SII-insula region in our study, the response amplitude was increased. Further study of the exact physiological mechanism of Qigong is needed.
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Affiliation(s)
- Wei-Lin Yu
- Shanghai Qigong Institute, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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35
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Nielsen K, Smith P, Yu WL, Elmgren C, Halbert G, Nicoletti P, Perez B, Conde S, Samartino L, Nicola A, Bermudez R, Renteria T. Validation of a second generation competitive enzyme immunoassay (CELISA) for the diagnosis of brucellosis in various species of domestic animals. Vet Immunol Immunopathol 2008; 125:246-50. [PMID: 18771805 DOI: 10.1016/j.vetimm.2008.02.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2007] [Revised: 02/14/2008] [Accepted: 02/20/2008] [Indexed: 10/22/2022]
Abstract
A second generation competitive enzyme immunoassay (CELISA) for detection of bovine antibody to Brucella abortus was developed to eliminate reagent variables in the assay. This assay was different from earlier CELISA formats in that it used recombinant protein A and protein G immunoglobulin receptors (PAG), labelled with horseradish peroxidase, thus eliminating the requirement for polyclonal anti-mouse-enzyme conjugate for detection. This allowed standardization of the assay. The CELISA uses a monoclonal antibody specific for a common epitope of the O-polysaccharide (OPS) of smooth lipopolysaccharide (SLPS) derived from B. abortus S1119.3. This antibody did not react with PAG. This monoclonal antibody was used to compete with antibody in the bovine test serum to the smooth lipopolysaccharide (SLPS) antigen. Reaction of bovine antibody was then measured directly with the PAG enzyme conjugate. In this case, development of colour in the reaction indicated a positive reaction. The performance characteristics of the new CELISA, sensitivity, specificity and exclusion of antibody of B. abortus S19 vaccinated animals, were very similar to those of the classical CELISA and to the indirect enzyme immunoassay (IELISA) when using sera deemed positive by isolation of the bacterium, either from individual animals or from some animals on the premises. All sera were tested by the buffered antigen plate agglutination test (BPAT) and the complement fixation test (CFT). Only samples positive on both BPAT and CFT were considered as positive and only samples negative on both tests were used considered negative. Sufficient samples from cattle, swine, sheep and goats to validate the test were included based on OIE guidelines suggesting inclusion of a minimum of 300 positive and 1000 negative samples.
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Affiliation(s)
- K Nielsen
- Canadian Food Inspection Agency, Ontario Laboratories (Fallowfield), Ottawa, Ontario, Canada.
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Nielsen K, Yu WL, Lin M, Davis SAN, Elmgren C, Mackenzie R, Tanha J, Li S, Dubuc G, Brown EG, Keleta L, Pasick J. Prototype single step lateral flow technology for detection of avian influenza virus and chicken antibody to avian influenza virus. J Immunoassay Immunochem 2007; 28:307-18. [PMID: 17885885 DOI: 10.1080/15321810701603443] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A rapid and effective lateral flow assay (LFA) for detection of avian influenza virus (AIV) was developed. For antigen capture, the assay used monoclonal antibody specific for a conserved nuclear protein (NP) epitope, immobilized on a cellulose acetate matrix, in conjunction with a second NP monoclonal antibody chemically linked to either coloured latex beads or colloidal gold particles contained in a sample pad for detection. Virus sample added to the sample pad flowed into the trapping antibody to form a visible band as well as a second, control band further along the acetate strip. The control band consisted of recombinant protein A/G, also immobilized on the matrix. A second LFA for detection of chicken antibody to AIV was developed where NP antigen was immobilized on the matrix with recombinant protein A/G immobilized as a control band. Latex beads or colloidal gold particles to which monoclonal anti-chicken antibody was attached, were used as the indicator system.
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Affiliation(s)
- K Nielsen
- Canadian Food Inspection Agency, Ottawa Laboratories (Fallowfield), 3851 Fallowfield Road, Ottawa, Ontario, Canada.
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Abstract
Sheep were immunized with killed Salmonella enterica serotype Urbana cells and their sera were tested in various serological tests for antibody to Brucella sp., Yersinia enterocolitica O:9 and Escherichia coli O:157 H:7. Of the eight sheep, all gave a positive agglutination reaction in the brucellosis buffered antigen plate agglutination test (BPAT), seven gave positive brucellosis standard tube agglutination test (TAT) and complement fixation test (CFT) results and four gave slightly positive reactions in a competitive enzyme immunoassay (CELISA). Seven sera were negative in an indirect enzyme immunoassay (IELISA-SLPS) using B. abortus smooth lipopolysaccharide (SLPS) antigen and all were negative in a fluorescence polarization assay (FPA-OPS) using B. abortus O-polysaccharide antigen. Two sheep gave a slight positive reaction in an IELISA using Brucella rough lipopolysaccharide antigen (IELISA-RLPS) and four sheep were slightly positive in an FPA using Brucella LPS core antigen (FPA-CORE). All sheep had high antibody responses to S. enterica serotype Urbana, Y. and E. coli O:157 and 7 were positive for antibody to Y. enterocolitica O:9 when tested by IELISA. The sheep were negative when tested in the FPA using OPS from Y. enterocolitica O:9 but all were strongly positive in the FPA using OPS from E. coli O:157 while seven sheep had titers to S. enterica serotype Urbana. The impact on diagnostic serology for brucellosis is discussed.
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Affiliation(s)
- K Nielsen
- Ottawa Laboratories (Fallowfield), Canadian Food Inspection Agency, Ottawa, Ontario, Canada.
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Nielsen K, Smith P, Yu WL, Elmgren C, Nicoletti P, Perez B, Bermudez R, Renteria T. Second generation competitive enzyme immunoassay for detection of bovine antibody to Brucella abortus. Vet Microbiol 2007; 124:173-7. [PMID: 17467200 DOI: 10.1016/j.vetmic.2007.03.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2007] [Revised: 03/19/2007] [Accepted: 03/22/2007] [Indexed: 10/23/2022]
Abstract
A second generation competitive enzyme immunoassay (CELISA) for detection of bovine antibody to Brucella abortus was developed. This assay was different from previously developed CELISAs in that the detection reagent used was a recombinant combination of the receptor portions of protein A and protein G, labelled with horseradish peroxidase. This eliminates the need for polyclonal anti-mouse-enzyme conjugate reagents for detection thus allowing for true standardization. The assay utilized a monoclonal antibody specific for a common epitope of the O-polysaccharide (OPS) of smooth lipopolysaccharide (SLPS) derived from B. abortus S1119.3 but which did not react with protein A/G. This monoclonal antibody was used to compete with antibody in the bovine test serum. Binding of bovine antibody to the smooth lipopolysaccharide antigen was then measured directly with the protein A/G enzyme conjugate. In this case, development of colour in the reaction was indicative of the presence of bovine antibody. The performance characteristics, sensitivity, specificity and exclusion of B. abortus S19 vaccinated animals, of the assay were very similar to those of the classical CELISA.
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Affiliation(s)
- K Nielsen
- Canadian Food Inspection Agency, Ottawa Laboratory Fallowfield, 3851 Fallowfield Road, Ottawa, Ontario, Canada K2H 8P9.
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Nielsen K, Smith P, Yu WL, Rojas X, Perez B, Conde S, Samartino L, Robles C. Detection of Ovine Antibody toBrucella ovisby Indirect Enzyme Immunoassay. J Immunoassay Immunochem 2007; 28:243-50. [PMID: 17613670 DOI: 10.1080/15321810701454789] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Because some batch-to-batch variation in the preparation of rough lipopolysaccharide (RLPS) from Brucella ovis has been experienced, several protocols were tested to establish the most reliable method for detection of antibody in indirect enzyme immunoassay. An early version of the assay gave a performance index (PI=sum of optimum percent sensitivity and percent specificity, determined by receiver operator characteristic analysis) of 198.6. This assay used RLPS from B. ovis as the antigen and a monoclonal antibody specific for bovine IgG(1) heavy chain-enzyme conjugate for detection. This was not repeatable using other batches of antigen. Newer versions of the assay generally had decreased sensitivity values, giving PIs of 193. Use of a recombinant protein A/G-enzyme conjugate did not improve the PI (PI=190), giving reduced specificity and higher sensitivity. The final version used B. abortus RB51 RLPS as the antigen and protein A/G-enzyme conjugate for detection, giving a PI of 197. Because of the batch uniformity of the B. abortus RB51 RLPS and the versatility of the protein A/G-enzyme conjugate, the latter version appears to be the most useful for diagnostic serology.
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Affiliation(s)
- K Nielsen
- Ottawa Laboratories (Fallowfield), Canadian Food Inspection Agency, Ottawa, Ontario, Canada.
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Abstract
Seven llamas were immunized with killed Brucella abortus S1119.3 cells and bled sequentially, resulting in 64 samples. An eighth llama was kept as a negative control. In addition, 299 llama and 2075 alpaca sera, submitted for diagnostic testing, were included. Sera from all llamas were tested by the buffered antigen plate agglutination test, the complement fixation test, and the indirect enzyme immunoassays using smooth and rough lipopolysaccharides. A competitive enzyme immunoassay and fluorescence polarization assays were also performed. The sensitivity values for llama sera ranged from 92.2% to 100% and the specificity values from 89.6% to 100%. No alpacas were immunized. The specificity values for alpaca sera ranged from 94.8% to 100% specific although some sera gave an 'agglutination like' reaction after about 10 minutes of incubation. The complement fixation test could not be used, as 31% of the sera were anticomplementary and 4% were false positive.
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Affiliation(s)
- K Nielsen
- Canadian Food Inspection Agency, Ottawa Laboratories (Fallowfield), Ontario, Canada.
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Yu WL, Chen SC, Hung SW, Chuang YC, Chung JG, Chen IC, Wu LT. Genetic association of blaSHV-5 with transposable elements IS26 and IS5 in Klebsiella pneumoniae from Taiwan. Clin Microbiol Infect 2006; 12:806-9. [PMID: 16842580 DOI: 10.1111/j.1469-0691.2006.01488.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
A cloned 5,248-bp EcoRI fragment from the Klebsiella pneumoniae transferable plasmid pKP53 (> 70 kb) containing bla(SHV-5) was sequenced. Insertion sequences IS26 and IS5 were found downstream from bla(SHV-5). The DNA sequences of the genetic environment surrounding bla(SHV-5) were homologous to plasmid p1658/97 from Escherichia coli, containing a truncated recF gene and a truncated deoR gene upstream and downstream from bla(SHV-5), respectively. RecF may be involved in bla(SHV-5) translocation to the plasmid by RecF-dependent recombination. This novel genetic environment may be associated with the successful proliferation and/or expression of SHV-5 in K. pneumoniae strains from Taiwan.
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Affiliation(s)
- W L Yu
- Department of Critical Care Medicine, Chi-Mei Medical Center, Tainan, Taiwan
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Abstract
Spontaneous perforation of pyometra is an extremely rare emergent gynecologic disease. We report a 73-year-old woman with a spontaneously perforated pyometra presenting with acute abdomen in the emergency department. A dedicated computed tomography examination of the abdominal and pelvic regions revealed the diagnosis. The patient recovered well after surgical intervention and antibiotic treatment.
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Affiliation(s)
- K S Chan
- Department of Intensive Care Medicine, Chi-Mei Medical Center, Tainan, Taiwan.
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Abstract
Novel polymerised bicontinuous microemulsions can provide unique microenvironments for some functional molecules of scientific interests and practical applications.
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Affiliation(s)
- H Y Moy
- Institute of Materials Research & Engineering, 3 Research Link, Singapore 117602, Singapore
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44
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Ng DKK, Cherk SWW, Yu WL, Lau MY, Ho JCS, Chau CKW. Review of children with severe trauma or thermal injury requiring intensive care in a Hong Kong hospital: retrospective study. Hong Kong Med J 2002; 8:82-6. [PMID: 11937661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023] Open
Abstract
OBJECTIVE To study the injury pattern of children admitted for management of severe trauma or thermal injury. DESIGN Retrospective review. SETTING Paediatric intensive care unit of a regional hospital, Hong Kong. PATIENTS Twenty-eight children were admitted under this category from July 1996 to December 1999. MAIN OUTCOME MEASURES Mechanisms, severity, and circumstances of injury. RESULTS Road traffic accident was the most common cause of admission, followed by thermal injury, accidental fall, and non-accidental injury. However, children with non-accidental injury were admitted in a significantly more severe condition, as measured by the paediatric risk of mortality score, than those admitted for the other three reasons. Non-accidental injury was also associated with significantly higher morbidity and mortality than the other causes of admission. CONCLUSIONS During the 42-month study period, trauma and thermal injury accounted for 7% of all admissions to the paediatric intensive care unit. Road traffic accident was the most common reason, while non-accidental injury accounted for the most serious injury. Detailed analysis of these cases identified certain preventable risk factors.
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Affiliation(s)
- D K K Ng
- Department of Paediatrics, Kwong Wah Hospital, 25 Waterloo Road, Hong Kong
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Abstract
The state of the art for susceptibility testing of yeasts is comparable with that of bacteria. Standardized methods for performing antifungal susceptibility testing are reproducible, accurate, and available in clinical laboratories. The development of quality control limits and interpretive criteria for a limited number of antifungal agents provides a basis for the application of this testing in the clinical laboratory. A proficiency testing program is available as a quality assurance measure for laboratories and has documented steady improvement among laboratories using the NCCLS method. As with antibacterial agents, surveillance programs are now in place using reference quality testing methods to monitor antifungal resistance trends on a global scale. It is clear that antifungal susceptibility testing can predict outcome in several clinical situations. Susceptibility testing is most helpful in dealing with infection caused by non-albicans species of Candida, and susceptibility testing of azoles is increasingly important in the management of candidiasis in critically ill patients. Susceptibility testing also has been standardized for filamentous fungi that cause invasive infections. Studies are ongoing to further refine this approach and evaluate the in vivo correlation with the in vitro data for molds. Future efforts must be directed toward establishing and validating interpretive break-points for licensed antifungals such as amphotericin B, and for new antifungals that are not yet licensed. Finally, procedures must be optimized for testing non-Candida yeasts (e.g., C. neoformans) and molds.
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Affiliation(s)
- M A Pfaller
- Medical Microbiology Division, Department of Pathology, University of Iowa College of Medicine, Iowa City, Iowa, USA.
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46
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Abstract
Although cryopreservation of bovine embryo has made great progress in recent years, little achievement was obtained in ovine embryo freezing, especially in vitro produced embryos. However, a simple and efficient method for cryopreservation of sheep embryos will be important for application of ovine embryonic techniques such as in vitro fertilization, transgenic, cloning and etc. In this study ovine blastocysts, produced in vivo or in vitro, were cryopreserved by vitrification in EFS40 (40% ethylene glycol (EG), 18% ficoll and 0.5 M sucrose) or GFS40 (40% glycerol (GL), 18% ficoll and 0.5 Mol sucrose). In vitro produced, early blastocysts were directly plunged into liquid nitrogen (LN2) after preparation by one of the following procedures at 25 degrees C: (A) equilibration in EFS40 for 1 min; (B) equilibration in EFS40 for 2 min; (C) equilibration in EFS40 for 30 s following pretreatment in 10% EG for 5 min; (D) equilibration in EFS40 for 30 s following pretreatment in EFS20 for 2 min (E) equilibration in GFS30 for 30 s following pretreatment in 10% GL for 5 min. The survival rates observed after thawing and in vitro culture for 12 h were A 78.0% (39/50), B 50.0% (26/52), C 93.3% (70/75), D 92.0% (46/50) and E 68.0% (34/50). Survival rates were not significantly different for treatments C and D (p>0.05), but those for groups C and D were significantly higher than for A, B and E (p<0.05). After 24 h in vitro culture, hatched blastocyst rates were A 28.0% (14/50), B 21.1% (11/52), C 49.3% (37/75), D 48.0% (24/50), E 32.0% (16/50) and control 54.0% (27/50). The hatching rates for groups A, B and E were significantly lower than the control (p<0.05) in which early IVF blastocysts were cultured in fresh SOFaaBSA medium following treatment in PBS containing 0.3% BSA for 30 min, but for groups C and D it was similar to the control (p>0.05). The freezing procedures A, B and C were used to vitrify in vivo produced, early blastocysts recovered from superovulated ewes. The survival rates of frozen-thawed in vivo embryos were A 94.7% (72/76), B 75.0% (45/60) and C 96.4% (54/56) and for group B was significantly lower than for the other two treatment groups (p<0.05). Hatched blastocyst rates were A 46.0% (35/76), B 26.6% (16/60), C 51.8% (29/56) and the control 56.7% (34/60) in which early blastocysts from superovulation were cultured in fresh SOFaaBSA medium following treatment in PBS containing 0.3% BSA for 30 min. The hatching rate for treatment B was significantly lower than for the control (p<0.05) but did not differ between groups A, C and the control (p>0.05). Frozen-thawed embryos vitrified by procedure C were transferred into synchronous recipient ewes. Pregnancy and lambing rates were similar for embryos transferred fresh or frozen/thawed for both in vivo and in vitro produced embryos. These rates did not differ between in vivo and in vitro embryos transferred fresh (p>0.05). However, for frozen-thawed embryos, both rates were significantly lower for in vitro than for in vivo produced embryos (p<0.05).
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Affiliation(s)
- S E Zhu
- Laboratory of Animal Embryonic Biotechnology, College of Animal Science and Technology, China Agricultural University, Beijing
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47
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Chen QC, Yu WL, Wang J. [Simultaneous determination of various food additives by high performance liquid chromatography]. Se Pu 2001; 19:105-8. [PMID: 12541649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2023] Open
Abstract
A novel method is proposed for the simultaneous separation and determination of eight food additives, acesulfame potassium (AK), aspartame (ASP), benzoic acid (BA), caffeine (CA), saccharin sodium (SA), sorbic acid (SOR), theobromine (TB) and theophylline (TP) by reversed-phase high performance liquid chromatography. The separation was achieved within 23 min by using an Alltech Econosphere C18 column with 10 mmol/L NaH2PO4(pH 4.00)-acetonitrile (90:10, V/V) as mobile phase. The qualification and quantitation were accomplished by using a photodiode array detector. The detection limits (S/N = 3) for all analytes were below mg/L level. Under the experimental conditions, other common food additives and organic acids such as cyclamate, citric acid, malic acid, tartaric acid and ascorbic acid, did not interfere with the determination. The method has been successfully applied to the analysis of various foods as well as pharmaceutical preparation, and the average recoveries for real samples ranged from 78.5% to 107.2%.
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Affiliation(s)
- Q C Chen
- China Import and Export Commodity Inspection Technology Institute, Beijing 100025, China.
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Yu WL, Cheng HS, Lin HC, Peng CT, Tsai CH. Outbreak investigation of nosocomial enterobacter cloacae bacteraemia in a neonatal intensive care unit. Scand J Infect Dis 2000; 32:293-8. [PMID: 10879601 DOI: 10.1080/00365540050165947] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Over a period of 7 months, 23 patients hospitalized in a neonatal intensive care unit (NICU) developed nosocomial Enterobacter cloacae bacteraemia. Contaminated saline for preparing heparin solution was initially identified as the common source of E. cloacae bacteraemia. Although environmental sanitation was enforced, the outbreak continued. E. cloacae has always been isolated from various cultures of the environmental specimens, from the hands of personnel and from the faeces of patients. All of the 23 bacteraemic isolates and 8 stool isolates from infected infants, as well as the 17 isolates from environmental specimens were found to be of the same genotype using the polymerase chain reaction-based DNA fingerprinting method. After various infection control methods were instituted, the outbreak eventually came under control. For epidemiological investigation, 23 neonates without E. cloacae bacteraemia were matched for case-control study. Nineteen (83%) of the case-patients were premature. The significant risk factors leading to E. cloacae bacteraemia in the NICU included small gestation age, low birthweight, exposure to personnel with contaminated hands and the presence of E. cloacae in the stool carriage (p=0.003, 0.007, 0.018 and 0.040, respectively). The gastrointestinal tracts of the patients and environmental surfaces appeared to be the principal sites of bacterial reservoir. In conclusion, the outbreak of E. cloacae bacteraemia was caused by a particular strain and possibly via multiple modes of transmission, including a bottle of contaminated saline as an initial common source, endogenous spread from the gastrointestinal tract and successive cross-infections between patients, hands of personnel and the environment. Effective infection control requires a multidisciplinary approach and reinforcement of infection control procedures, including aseptic technique, hand washing, proper isolation and disinfection of environmental surfaces.
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Affiliation(s)
- W L Yu
- Department of Medicine, China Medical College Hospital, Taichung, Taiwan
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49
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Abstract
The antinuclear antibodies (ANA) test has been a cornerstone of the evaluation of connective tissue disease. The aim of this study was to investigate the diagnostic value of the ANA test in pleural or pericardial effusions of unknown causes. Over a 3-yr period, a total of 126 pleural fluid and 30 pericardial fluid samples were analysed. ANA tests were performed using a commercially available kit. The ANA kit used an indirect immunofluorescent antibody method with a human epithelial (HEP-2) cell line as substrate. Patients with high fluid ANA titre (>1:160) received a second aspiration 2 weeks after the initial aspiration if diagnosis was not confirmed. ANA results were positive in 39 pleural and 10 pericardial fluid samples. All but one of the effusions with positive ANA testing were exudative. Eleven pleural or pericardial effusions due to active systematic lupus erythematosus were identified and all had high ANA titres (1:160) with various staining patterns. Thirty-eight of 145 patients (26%) with effusions of nonlupus aetiologies had positive ANA testing in pleural or pericardial fluid. Thirteen of these 38 patients had high ANA titre. Malignant or paramalignant effusions constituted 11 of the 13 samples. In conclusion, although a negative antinuclear antibodies test makes a diagnosis of lupus serositis unlikely, high antinuclear antibodies titres in pleural or pericardial fluid are not diagnostic of lupus serositis even when as high as 1:5,120. An unexplained high antinuclear antibodies titre in pleural or pericardial effusion warrants search for malignancy.
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Affiliation(s)
- D Y Wang
- Division of Chest and Cytopathology, China Medical College Hospital Medical Center, Taichung, Republic of China
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50
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Wang DY, Yang PC, Yu WL, Shiah DC, Kuo HW, Hsu NY. Comparison of different diagnostic methods for lupus pleuritis and pericarditis: a prospective three-year study. J Formos Med Assoc 2000; 99:375-80. [PMID: 10870326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023] Open
Abstract
BACKGROUND AND PURPOSE Pleural or pericardial effusions, or both, are commonly encountered, but the differential diagnosis is sometimes difficult. We evaluated the diagnostic value of effusion immunofluorescent antinuclear antibody (ANA) titer, systemic lupus erythematosus (SLE) latex agglutination slide test, and cytologic LE cell examination in patients with pleural and/or pericardial effusions of various etiologies. METHODS A total of 153 pleural and/or pericardial effusion specimens were collected by aspiration from 152 patients (14 SLE and 138 non-SLE patients). All specimens were sent for routine biochemistry testing, determination of ANA titer, SLE latex agglutination slide test, and LE cell examination. RESULTS Ten of the 14 SLE patients had lupus serositis and all of them had high ANA titers (> or = 1:160) in their effusions. SLE latex and LE cell tests were positive in seven and eight patients with lupus serositis, respectively. The remaining four SLE patients with effusion of etiologies other than lupus serositis had low or negative effusion ANA titers. Among the non-SLE patients, 29 of 112 patients (26%) with pleural effusion and six of 26 patients (23%) with pericardial effusion had positive ANA tests (> or = 1:40). None of them had a positive SLE latex or LE cell test result. Thirteen of the 138 non-SLE patients (11%) had high effusion ANA titers (> or = 1:160). Effusion in 11 of 13 non-SLE patients (85%) was due to malignancy. CONCLUSIONS Effusion ANA titer detection is a very sensitive but nonspecific test for the diagnosis of lupus serositis. SLE latex and cytologic LE cell tests can aid in the differential diagnosis as complementary tools. The specificity, positive and negative predictive values of these two tests are excellent for the diagnosis of lupus serositis.
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Affiliation(s)
- D Y Wang
- Division of Chest Medicine, China Medical College Hospital Medical Center, Taichung, Taiwan
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